Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
A304415
Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =24a(2) =103a(3) =835a(4) =7017a(5) =60245a(6) =522349a(7) =4542604a(8) =39567170a(9) =344867709a(10) =3006637339a(11) =26216229524a(12) =228603730278
External references
- oeis: A304415